LPM to SCFH Calculator

Disclaimer: While we strive to ensure the accuracy of our calculator tools, we cannot be held responsible for any damages or financial losses resulting from their use.

This LPM to SCFH Calculator is for converting flow rates from liters per minute (LPM) or liters per hour (LPH) to standard cubic feet per hour (SCFH). This conversion is often required in industrial applications, fluid dynamics, and gas flow systems where standard conditions are used for comparison and system design.

This calculator simplifies the math and helps you avoid manual conversion errors. Whether you're dealing with air, gas, or other fluids, having a quick and reliable converter like this can enhance efficiency and accuracy.

Understanding the Basics

• LPM (Liters per Minute): A metric unit measuring how many liters of fluid flow in one minute.
• SCFH (Standard Cubic Feet per Hour): A unit used to express gas flow rates under standard conditions (typically 1 atm pressure and 60°F or 15.6°C temperature).

Since liters and cubic feet are different volume units, we use a fixed conversion factor between them:

1 cubic foot = 28.3168 liters

So, 1 liter = 1 / 28.3168 cubic feet ≈ 0.0353147 ft³

How to Convert LPM to SCFH

We first convert liters per minute (LPM) to cubic feet per minute (CFM) and then multiply by 60 to get SCFH:

SCFH = LPM × (1 / 28.3168) × 60

Or simply:

SCFH = LPM × .11888

Example 1: Convert 100 LPM to SCFH

SCFH = 100 × 2.11888 = 211.888

Result: 100 LPM = 211.89 SCFH

Example 2: Convert 50 LPM to SCFH

SCFH = 50 × 2.11888 = 105.944

Result: 50 LPM = 105.94 SCFH

LPM to SCFH Conversion Table

LPM	SCFH	SCFM
10	21.19	0.353
20	42.38	0.706
30	63.57	1.059
50	105.94	1.765
75	158.92	2.648
100	211.89	3.531
150	317.83	5.296
200	423.78	7.061
300	635.66	10.592
500	1059.44	17.653

FAQ

How do I convert LPM to SCFH manually?

You can use the formula:

SCFH = LPM × 2.11888

This is derived from converting liters to cubic feet and minutes to hours.

Can this calculator convert LPH to SCFH?

Yes, if you select the LPH (Liters per Hour) option, the calculator will automatically adjust the formula to convert it into SCFH accurately.

What are the standard conditions used for SCFH?

Standard conditions typically mean:

• Pressure: 1 atm (14.7 psi)
• Temperature: 60°F (15.6°C) or 0°C

These conditions are used to normalize gas volume measurements.

Is this calculator accurate for all gases?

This calculator assumes ideal gas behavior under standard conditions. For specific gases with compressibility or high-pressure deviations, a more detailed engineering calculation might be required.